<?php
class Mwc_SystemPoint_Block_Userpoint_Main extends Mage_Adminhtml_Block_Widget_Grid_Container{
    public function __construct(){
        $this->_addButtonLabel = Mage::helper('systempoint')->__('Add New User Point');
        parent::__construct();
 
        $this->_blockGroup = 'systempoint';
        $this->_controller = 'userpoint_main';
        $this->_headerText = Mage::helper('systempoint')->__('User Point(s)');
    }
}